shall be immediately liable to the board for all sums advanced with interest at the minimum rate of 12 percent per annum from the date of each payment by the board and compounded annually to the date the scholarship or loan is paid in full; provided, however, that the board may consent or agree to a lesser measure of damages for compelling reasons as determined by the board. The board is authorized to increase annually such rate of interest due on loans granted to new recipients; provided, however, that the increased rate of interest shall not exceed by more than 2 percent the prime rate published by the Board of Governors of the Federal Reserve System and in effect at the time of the increase.
OCGA § 20-3-514